Error: Value of type 'String' cannot be converted to '1-dimensional array of String RSS

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  ayubjaved

  0 Points

  9 Posts

  Error: Value of type 'String' cannot be converted to '1-dimensional array of String

  Aug 05, 2011 02:02 AM|LINK

  Hi all can anyone tell me how to resolve this error my code is

   Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
  
          Roles.AddUsersToRole(DropDownList1.SelectedValue, DropDownList2.SelectedValue)
          Label1.Text = DropDownList1.SelectedValue + "Was Add to the" + DropDownList2.SelectedValue + "Role"
     

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  sambeetpatra

  Participant

  1386 Points

  227 Posts

  Re: Error: Value of type 'String' cannot be converted to '1-dimensional array of String

  Aug 05, 2011 02:35 AM|LINK

  DropDownList1.SelectedValue is a string where as the first argument is supposed to be ab array of strings. Check this out:

   

  http://msdn.microsoft.com/en-us/library/system.web.security.roles.adduserstorole.aspx

  Sambeet
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  Damon Liu - ...

  Contributor

  5920 Points

  535 Posts

  Microsoft

  Re: Error: Value of type 'String' cannot be converted to '1-dimensional array of String

  Aug 10, 2011 08:34 AM|LINK

  Hi,

  From your details,

  public static void AddUsersToRole(
  	string[] usernames,
  	string roleName
  )
  

  the first parameter is a 1-dimensional array, you can convert DropDownList1.SelectedValue to array first.

  Dim str As String() ={"DropDownList1.SelectedValue"}

  Roles.AddUsersToRole(str(0), DropDownList2.SelectedValue)

  Best Regards,

  Damon
   

  Please mark the replies as answers if they help or unmark if not.
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  • Marked as answer by Damon Liu - MSFT on Aug 15, 2011 01:07 AM